Compare 21881 vs 22091
| Property | 21881 | 22091 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 218811 | 220911 |
| Prime factorization | 21881 | 22091 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21881 | 1, 22091 |
| Number of properties | 4 | 4 |
| Chen primes | 1204th | 1215th |
| Harmonic primes | 911th | |
| Isolated primes | 1712th | |
| Primes | 2455th | 2476th |
| Pythagorean primes | 1217th | |
| Twin primes (1st member) | 374th | |
| Roman numberals | ||
| Base 2 | 1010101011110012 | 1010110010010112 |
| Base 3 | 10100001023 | 10100220123 |
| Base 4 | 111113214 | 111210234 |
| Base 5 | 12000115 | 12013315 |
| Base 6 | 2451456 | 2501356 |
| Base 7 | 1205367 | 1212567 |
| Base 8 | 525718 | 531138 |
| Base 9 | 330129 | 332659 |
| Base 10 | 2188110 | 2209110 |
| Base 11 | 1549211 | 1566311 |
| Base 12 | 107b512 | 1094b12 |
| Base 13 | 9c6213 | a09413 |
| Base 14 | 7d8d14 | 809d14 |
| Base 15 | 673b15 | 682b15 |
| Base 16 | 557916 | 564b16 |